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PE20021157A1 - PROCESS TO PREPARE 6- (4-CHLOROPHENYL) -2,2-DIMETHYL-7-PHENYL-2,3-DIHYDRO-1H-PYRROLIZIN-5-ILACETIC ACID - Google Patents

PROCESS TO PREPARE 6- (4-CHLOROPHENYL) -2,2-DIMETHYL-7-PHENYL-2,3-DIHYDRO-1H-PYRROLIZIN-5-ILACETIC ACID

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Publication number
PE20021157A1
PE20021157A1 PE2001000387A PE2001000387A PE20021157A1 PE 20021157 A1 PE20021157 A1 PE 20021157A1 PE 2001000387 A PE2001000387 A PE 2001000387A PE 2001000387 A PE2001000387 A PE 2001000387A PE 20021157 A1 PE20021157 A1 PE 20021157A1
Authority
PE
Peru
Prior art keywords
dimethyl
pyrrolizin
dihydro
phenyl
refers
Prior art date
Application number
PE2001000387A
Other languages
Spanish (es)
Inventor
Thomas Kammermeier
Stefan Laufer
Philipp Merckle
Hans-Gunter Striegel
Original Assignee
Merckle Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merckle Gmbh filed Critical Merckle Gmbh
Priority to PE2001000387A priority Critical patent/PE20021157A1/en
Publication of PE20021157A1 publication Critical patent/PE20021157A1/en

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Abstract

SE REFIERE A UN PROCESO PARA LA PREPARACION DE ACIDO 6-(4-CLOROFENIL)-2,2-DIMETIL-7-FENIL-2,3-DIHIDRO-1H-PIRROLIZIN-5-ILACETICO (LICOFELONE) DE FORMULA I QUE COMPRENDE REACCIONAR EL 6-(4-CLOROFENIL)-2,2-DIMETIL-7-FENIL-2,3-DIHIDRO-1H-PIRROLIZIN CON CLORURO DE OXALILO Y EL PRODUCTO OBTENIDO SE TRATA CON HIDRAZINA Y UN HIDROXIDO DE METAL ALCALINO EN PRESENCIA DE UN ALCOHOL ALIFATICO, DIETILENGLICOL EN LA FASE ACUOSA A TEMPERATURA ELEVADA DENTRO DEL RANGO QUE OSCILA ENTRE 120°C A 180°C LUEGO DE COMPLETAR EL TRATAMIENTO SE PRODUCE UN SISTEMA TRIFASICO POR LA ADICION DE UN ETER (ETER DIETILICO, METILBUTILICO, TETRAHIDROFURANO) Y SE OBTIENE COMPUESTOS DE FORMULA I ACIDIFICANDO LA FASE INTERMEDIA; EL PROCESO SE CARACTERIZA PORQUE LOS CONSTITUYENTES VOLATILES A LA TEMPERATURA DE TRATAMIENTO SE ELIMINAN AL MENOS PARCIALMENTE. TAMBIEN SE REFIERE A UN PROCESO PARA PREPARAR COMPUESTOS DE FORMULA III QUE COMPRENDE REACCIONAR 2-BENCIL-4,4-DIMETIL-1-PIRROLINA CON UN HALO-4-CLOROACETANO EN UN SOLVENTE ORGANICO POLAR COMO METANOL EN PRESENCIA DE UN CARBONATO DE HIDROGENO DE METAL ALCALINO O UN CARBONATO DE METAL ALCALINO EN FORMA SOLIDA. TAMBIEN SE REFIERE A LA FORMA CRISTALINA DEL COMPUESTO I QUE TIENE UNA LINEA ENDOTERMICA EN EL DIAGRAMA DE DSC ENTRE 155 Y 170; ESPECTRO EN IR, PATRON DE DIFRACCION DE RAYOS X. EL COMPUESTO ES INHIBIDOR DE CICLOOXIGENASA Y 5-LIPOOXIGENASA Y PUEDE SER UTIL PARA EL TRATAMIENTO DE TRASTORNOS DE TIPO REUMATICO E INDUCIDOS ALERGICAMENTE.IT REFERS TO A PROCESS FOR THE PREPARATION OF 6- (4-CHLOROPHENIL) -2,2-DIMETHYL-7-PHENYL-2,3-DIHYDRO-1H-PYRROLIZIN-5-ILACETICO (LICOFELONE) ACID OF FORMULA I THAT INCLUDES REACTION 6- (4-CHLOROPHENYL) -2,2-DIMETHYL-7-PHENYL-2,3-DIHYDRO-1H-PYRROLIZIN WITH OXALYL CHLORIDE AND THE PRODUCT OBTAINED IS TREATED WITH HYDRAZINE AND AN ALKALINE METAL HYDROXIDE IN THE PRESENCE OF A ALIPHATIC ALCOHOL, DIETHYLENGLYCOL IN THE AQUEOUS PHASE AT A HIGH TEMPERATURE WITHIN THE RANGE THAT RANGES BETWEEN 120 ° C TO 180 ° C AFTER COMPLETING THE TREATMENT, A THREE-PHASE SYSTEM IS PRODUCED BY THE ADDITION OF AN ETHER (DIETHYL YETHYL ETHER, METHYLBUTHYL) FORMULA I COMPOUNDS ACIDING THE INTERMEDIATE PHASE; THE PROCESS IS CHARACTERIZED BECAUSE THE VOLATILE CONSTITUENTS AT THE TREATMENT TEMPERATURE ARE AT LEAST PARTIALLY ELIMINATED. IT ALSO REFERS TO A PROCESS TO PREPARE FORMULA III COMPOUNDS WHICH INCLUDES REACTING 2-BENZYL-4,4-DIMETHYL-1-PYRROLINE WITH A HALO-4-CHLOROACETHANE IN A POLAR ORGANIC SOLVENT SUCH AS METHANOL IN THE PRESENCE OF A HYDROGEN CARBONATE OF HYDROGEN. ALKALINE METAL OR AN ALKALINE METAL CARBONATE IN SOLID FORM. IT ALSO REFERS TO THE CRYSTAL FORM OF COMPOUND I WHICH HAS AN ENDOTHERMAL LINE IN THE DSC DIAGRAM BETWEEN 155 AND 170; SPECTRUM IN IR, X-RAY DIFFRACTION PATTERN. THE COMPOUND IS AN INHIBITOR OF CYCLOOXYGENASE AND 5-LIPOOXIGENASE AND MAY BE USEFUL FOR THE TREATMENT OF ALLERGICALLY INDUCED AND RHEUMATIC DISORDERS.

PE2001000387A 2001-04-30 2001-04-30 PROCESS TO PREPARE 6- (4-CHLOROPHENYL) -2,2-DIMETHYL-7-PHENYL-2,3-DIHYDRO-1H-PYRROLIZIN-5-ILACETIC ACID PE20021157A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PE2001000387A PE20021157A1 (en) 2001-04-30 2001-04-30 PROCESS TO PREPARE 6- (4-CHLOROPHENYL) -2,2-DIMETHYL-7-PHENYL-2,3-DIHYDRO-1H-PYRROLIZIN-5-ILACETIC ACID

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PE2001000387A PE20021157A1 (en) 2001-04-30 2001-04-30 PROCESS TO PREPARE 6- (4-CHLOROPHENYL) -2,2-DIMETHYL-7-PHENYL-2,3-DIHYDRO-1H-PYRROLIZIN-5-ILACETIC ACID

Publications (1)

Publication Number Publication Date
PE20021157A1 true PE20021157A1 (en) 2003-02-25

Family

ID=43602635

Family Applications (1)

Application Number Title Priority Date Filing Date
PE2001000387A PE20021157A1 (en) 2001-04-30 2001-04-30 PROCESS TO PREPARE 6- (4-CHLOROPHENYL) -2,2-DIMETHYL-7-PHENYL-2,3-DIHYDRO-1H-PYRROLIZIN-5-ILACETIC ACID

Country Status (1)

Country Link
PE (1) PE20021157A1 (en)

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